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Auteur(s) Olivier Bonaventure
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Paths in an IPv6 network

Consider the network shown in the figure below. In this network, the following addresses are used.

  • host A : 2001:db8:1341:1::A and its default route points to 2001:db8:1341:1::1
  • host B : 2001:db8:1341:4::B and its default route points to 2001:db8:1341:4::4

The routers have one address inside each network :

  • router R1 uses address 2001:db8:1341:1::1 on its West interface, address 2001:db8:1341:12::1 on its East interface and address 2001:db8:1341:13::1 on its South interface
  • router R2 uses address 2001:db8:1341:12::2 on its West interface, address 2001:db8:1341:23::2 on its South-West interface and address 2001:db8:1341:24::2 on its South interface.
  • router R3 uses address 2001:db8:1341:34::3 on its East interface, address 2001:db8:1341:23::3 on its North-East interface and address 2001:db8:1341:13::3 on its North interface
  • router R4 uses address 2001:db8:1341:34::4 on its West interface, address 2001:db8:1341:24::4 on its North interface and address 2001:db8:1341:4::4 on its East interface

The forwarding paths used in a network depend on the forwarding tables installed in the network nodes. Sometimes, these forwarding tables must be configured manually.

https://inginious.org/course/cnp3/q-ipv6-static-2/figure.png

Question 1: Path from A to B

What is the path from A to B ? Provide your answer as A-Rx-Ry-B

Question 2: Path from B to A

What is the path from B to A ? Provide your answer as B-Rx-Ry-A